Save and Publish your work. Open the project's .html file in your web browser. Add ?clickTag=http://www.appnexus.comat the end of the URL in the address bar.

Refresh the page and click on the ad. A new window with AppNexus' website should open in your browser. When the ad is served AppNexus sets the value of clickTag to AppNexus' click tracker and a redirect to the landing page URL provided for the creative in Console.